(1)  The gel-like mixture of chemicals inside of each cell is called the_______________.

(2)  Inside of each cell is a set of structures called_____________, each with its own function.

(3)  The control center of a cell is the_____________. It tells every part of the cell what to do.

(4)  Cells with a membrane around their nucleus are called____________.  Cells like bacteria which do not have a membrane around their nucleus are called_____________.

(5)  Every cell is surrounded by a________________ which holds the cell together and  allows materials to move into and out of the cell.

(6)  Only plant cells have a______________, a rigid structure outside the cell membrane. It is made mostly of a tough material called cellulose; and it provides support for a plant to keep its shape and grow upright.

(7)  ______________are spaces inside of cells that are used to store water, food or waste.

(8)  ______________are like power plants for the cell. They break down food to release the energy that the cell needs in order to live and perform its activities.

(9)  ______________contain chlorophyll and take energy from the sun to create food for the plant cell.

(10)  The process by which plants use the sun's energy to combine carbon dioxide and water to create sugar and oxygen is called_______________.  Plants then use that sugar for food, and we use that oxygen to breathe!

(11)  Three structures found in both animal cells and plant cells are______________,
______________ and______________.

(12)  Two structures found only in plant cells are______________and
_______________.